low oil pressure in M45 ?

Post by **yidal8** » Tue Oct 05, 2004 4:03 am

It happened twice already . If I don't drive the car for more then 4-5 days ,there is no oil left up in the valvetrain . When I start the car again after this period , very ugly clacking noise comes from the engine , for about 3-6 seconds , until oil pressure builds up . I don't like it . Never happened in my 91Q , or if it does , it is not this bad .Anybody knows about thid issue with the new V-8

Post by **metaverse3** » Tue Oct 05, 2004 4:14 am

I'm assuming you checked oil level using the dipstick ? What weight do you run in the car ? could be a lazy oil pump or a blocked galley. New car, but not necessarily pefect.. Check the oil viscosity and do an oil change, if possible two to flush out the system..

Post by **PalmerWMD** » Tue Oct 05, 2004 4:23 am

metaverse3 wrote:I'm assuming you checked oil level using the dipstick ? What weight do you run in the car ? could be a lazy oil pump or a blocked galley. New car, but not necessarily pefect.. Check the oil viscosity and do an oil change, if possible two to flush out the system..

What he said.

Fred..

Post by **qship96** » Tue Oct 05, 2004 5:46 am

could be faulty anti-drainback valve,allowing filter to empty on shutdown,therefor no oil flow upon restart until filter refills.

Post by **PalmerWMD** » Tue Oct 05, 2004 5:59 am

Good point Qship.Yidal you're not using a Fram or other cheapo filter with no or poor anti-drain back valves?

Of copurse even on good filters they some times become stuck.

Fred..

Post by **yidal8** » Tue Oct 05, 2004 7:34 am

Always change oil @ dealer . I assume 5W30 .Less then 1000 mi. since last change . Oil level is good . I guess nobody else is having this issue ? Should I complain ?

Post by **PalmerWMD** » Tue Oct 05, 2004 7:49 am

I woul;d bring it up.dealers generally use 5 w-30 (some use 10w-30 in summer).

Chances are your antidrainback valve in the filter has malfunctioned

Post by **elwesso** » Tue Oct 05, 2004 10:13 am

Worse comes to worse itd be a great excuse to get a new engine!

Post by **Q45tech** » Tue Oct 05, 2004 2:48 pm

Look at the new design for lower friction valve lifters on the 2002 and later 4.5.

low oil pressure in M45 ?

low oil pressure in M45 ?

Re: low oil pressure in M45 ? (yidal8)

Re: low oil pressure in M45 ? (metaverse3)

Re: low oil pressure in M45 ? (PalmerWMD)

Re: (PalmerWMD)

Re: (elwesso)

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